DTC Logic

Diagnosis Procedure
1.CHECK USB HARNESS
Visually check USB harness.
U1243 display unit
U1255 satellite radio tunerTurn signal and hazard warning lamp system
Wiring Diagram
...
Front door speaker
Description
The AV control unit sends audio signals to the BOSE speaker amp. The BOSE
speaker amp. amplifies the
audio signals before sending them to the front door speakers using the audio
signal circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the AV control unit, BOSE speaker amp. ...
Unit removal and installation
EPS CONTROL UNIT
Removal and Ins
REMOVAL
Disconnect negative battery terminal. Refer to PG-67, "Removal and
Installation (Battery)".
Remove audio display unit. Refer to AV-73, "Removal and
Installation" (BASE AUDIO), AV-161, "Removaland Installation" (BOSE
W/MONOCHROME DISPLAY), A ...